Operating systems

BitNami Opina Stack is an easy-to-install
distribution of the Opina poll management
software. It includes pre-configured, ready-to-run
versions of Apache-Tomcat, MySQL, and JDK
(optional), so users can get an Opina installation
up and running in minutes after answering a few
questions. Linux, Windows, and OS X are supported.

Dudle is an online scheduling application. Users are able to schedule events (such as telephone conferences and meetings) or run opinion polls (for example, to find out which sort of coffee people like the most). Unlike most other similar applications, Dudle offers enhanced access control settings, which minimizes trust assumptions in the polling server.